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Project 1989 Gsxr 250r GJ73A, J704 cylinder head.

Discussion in 'Your 250cc Projects' started by Damian Habib, Jul 18, 2021 at 2:13 PM.

  1. Damian Habib

    Damian Habib Member

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    Hi All,

    I have just stripped the head and cylinder off my 1989 gsxr250r. It’s not looking good, both exhaust valves on cylinder 4 are gone, inlet valves are really bent & piston is now open vented into crank case haha.

    I’m in New Zealand, not sure if it was a common bike here.

    Anyway I’m putting my feelers out to see if anyone has or knowswhere I can find a cylinder head.

    Also trying to find a workshop manual, after looking through many old threads I think it might not exist. But seams like the bandit is very similar GJ74A does anyone know if they have the same engine.?

    gsxr .jpg
    A7D35C2A-EBF6-414F-96B9-BD0CF378703E.jpeg BCFA1FDB-FDFE-478F-8829-4C560FE1A8B0.jpeg 76CC474B-005A-4D12-B0BD-367CAF40E027.jpeg 6E749391-B013-450F-BD8C-0E1E4A3937B8.jpeg C2C8D3EC-9151-4C8F-9A33-07829E5778A8.jpeg
     
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  2. gregt

    gregt Well-Known Member Premium Member

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    They were imported here. Where are you ? A guy local to me had a couple plus bits last time I looked.I got one running for him a while back.He's talking about thinning the herd - he has rather a lot of bikes....
     
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  3. Damian Habib

    Damian Habib Member

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    I am in Blenheim, that would be amazing if you could ask when you see him next.
     
  4. Damian Habib

    Damian Habib Member

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    I wouldn’t say no to a complete engine either, I haven’t split the case yet so no sure if it’s done damage. Thanks
     
  5. gregt

    gregt Well-Known Member Premium Member

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  6. CobraBaz

    CobraBaz Active Member Premium Member

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    My Bike:
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    I done pretty much same to my gj73a Cobra,, Naked Gsxr250r,,,,
    Luckily I had a gj74a bandit head that I am rebuilding at the moment,,,


    4B68CD3C-1222-4CC9-ACA3-0318649FE1DD.jpeg CCCE29FD-32E3-435A-80AF-B8F7C4F03A10.jpeg AD6FDE50-6441-441D-BD9A-F762F75ADBED.jpeg ECF0BC6D-7FEB-4907-B12C-0165AC28FC15.jpeg
     
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